Texas Instruments

The bq50002A device is a highly integrated wireless power transmitter analog front end (AFE) that contains all of the analog components required to implement a Wireless Power Consortium (WPC) compliant 5-V transmitter. The bq50002A device integrates a full-bridge power driver with MOSFETs, variable-frequency oscillator, two-channel communication demodulator, linear regulator, and protection circuits. The bq50002A device must be used together with the digital controller bq500511A to realize a compact two chip wireless power transmitter solution. The bq500511A safely engages the RX device, receives packet communication from the powered device, and manages the power transfer according to WPC v1.2 specification. The system supports foreign object detection (FOD) by continuously monitoring the amount of power transferred and comparing that to the amount of received power, as reported by the receiver. This protects against power loss to metal objects misplaced in the wireless power transfer field. To do this, the bq50002A measures the input DC current accurately by using a current sense amplifier. Should any abnormal condition develop during power transfer, the bq500511A handles it and provides indication outputs. Comprehensive status and fault monitoring features enable a low cost yet robust WPC-certified wireless power system design. The bq50002A is available in a thermally enhanced 5.00 mm × 5.00 mm, 32-pin QFN package. The bq50002A device is a highly integrated wireless power transmitter analog front end (AFE) that contains all of the analog components required to implement a Wireless Power Consortium (WPC) compliant 5-V transmitter. The bq50002A device integrates a full-bridge power driver with MOSFETs, variable-frequency oscillator, two-channel communication demodulator, linear regulator, and protection circuits. The bq50002A device must be used together with the digital controller bq500511A to realize a compact two chip wireless power transmitter solution. The bq500511A safely engages the RX device, receives packet communication from the powered device, and manages the power transfer according to WPC v1.2 specification. The system supports foreign object detection (FOD) by continuously monitoring the amount of power transferred and comparing that to the amount of received power, as reported by the receiver. This protects against power loss to metal objects misplaced in the wireless power transfer field. To do this, the bq50002A measures the input DC current accurately by using a current sense amplifier. Should any abnormal condition develop during power transfer, the bq500511A handles it and provides indication outputs. Comprehensive status and fault monitoring features enable a low cost yet robust WPC-certified wireless power system design. The bq50002A is available in a thermally enhanced 5.00 mm × 5.00 mm, 32-pin QFN package.

The bq500100 is a voltage output, current-shunt monitor for wireless charging to facilitate foreign object detection (FOD). This device can sense drops across shunts at common-mode voltages from 0 V to 20 V, independent of the supply voltage. The device features a fixed voltage gain of 50 V/V with a maximum gain error of 2% and a offset voltage of 150 µV (maximum). This device operates from a single 2.7-V to 6-V power supply, drawing a maximum of 100 µA of supply current. The device is specified from –40°C to +105°C and is offered in the SC70 package. The bq500100 is a voltage output, current-shunt monitor for wireless charging to facilitate foreign object detection (FOD). This device can sense drops across shunts at common-mode voltages from 0 V to 20 V, independent of the supply voltage. The device features a fixed voltage gain of 50 V/V with a maximum gain error of 2% and a offset voltage of 150 µV (maximum). This device operates from a single 2.7-V to 6-V power supply, drawing a maximum of 100 µA of supply current. The device is specified from –40°C to +105°C and is offered in the SC70 package.

The bq500101 NexFET Power Stage is optimized for wireless power applications covering the WPC v1.2 medium power specification. The device can be used for both the rail voltage control in fixed frequency transmitter types as well as the coil drivers for both fixed and variable frequency types. This combination produces a high-current, high-efficiency, and high-speed switching device in a small 3.5 × 4.5 mm outline package. In addition, the PCB footprint is optimized to help reduce design time and simplify the completion of the overall system design. The bq500101 NexFET Power Stage is optimized for wireless power applications covering the WPC v1.2 medium power specification. The device can be used for both the rail voltage control in fixed frequency transmitter types as well as the coil drivers for both fixed and variable frequency types. This combination produces a high-current, high-efficiency, and high-speed switching device in a small 3.5 × 4.5 mm outline package. In addition, the PCB footprint is optimized to help reduce design time and simplify the completion of the overall system design.

The bq500110 is the industry’s first wireless power dedicated digital controller that integrates most of the logic functions required to control Wireless Power Transfer in a single channel WPC compliant contactless charging base station. The bq500110 is an intelligent device that periodically pings the surrounding environment for available devices to be powered; monitors all communication from the mobile device being wirelessly powered; adjusts power applied to the transmitter coil per feedback received from the powered device. The bq500110 also manages fault conditions associated with power transfer and controls the operating modes status indicator. The bq500110 is also the first wireless power controller with parasitic metal object detection that in real time analyzes efficiency of the established power transfer and protects itself and the power receiver from excessive power loss and heat associated with parasitic metal objects placed in the power transfer path. The bq500110 comes in the area saving 48-pin, 7mm × 7mm QFN package and operates over temperature range from –40°C to 110°C. The bq500110 is the industry’s first wireless power dedicated digital controller that integrates most of the logic functions required to control Wireless Power Transfer in a single channel WPC compliant contactless charging base station. The bq500110 is an intelligent device that periodically pings the surrounding environment for available devices to be powered; monitors all communication from the mobile device being wirelessly powered; adjusts power applied to the transmitter coil per feedback received from the powered device. The bq500110 also manages fault conditions associated with power transfer and controls the operating modes status indicator. The bq500110 is also the first wireless power controller with parasitic metal object detection that in real time analyzes efficiency of the established power transfer and protects itself and the power receiver from excessive power loss and heat associated with parasitic metal objects placed in the power transfer path. The bq500110 comes in the area saving 48-pin, 7mm × 7mm QFN package and operates over temperature range from –40°C to 110°C.

The bq500211A is a second generation digital wireless power controller that integrates all functions required to control wireless power transfer to a single WPC compliant receiver. It is WPC1.1 compliant and designed for 5-V systems as either a WPC type A5 transmitter with a magnetic positioning guide or as a WPC type A11 transmitter without the magnetic guide. The bq500211A the surrounding environment for WPC compliant devices to be powered, safely engages the device, receives packet communication from the powered device and manages the power transfer. To maximize flexibility in wireless power applications, Dynamic Power Limiting (DPL) is featured on the bq500211A. DPL enhances user experience by seamlessly optimizing the usage of power available from limited input supplies. The bq500211A supports both Foreign Object Detection (FOD) and Parasitic Metal Object Detection (PMOD) by continuously monitoring the efficiency of the established power transfer, protecting from power lost due to metal objects misplaced in the wireless power transfer bath. Should any abnormal condition develop during power transfer, the bq500211A handles it and provides indicator outputs. Comprehensive status and fault monitoring features enable a robust system design. The bq500211A is available in a 48-pin, 7 mm x 7 mm QFN package and operates over a temperature range from –40°C to 110°C. The bq500211A is a second generation digital wireless power controller that integrates all functions required to control wireless power transfer to a single WPC compliant receiver. It is WPC1.1 compliant and designed for 5-V systems as either a WPC type A5 transmitter with a magnetic positioning guide or as a WPC type A11 transmitter without the magnetic guide. The bq500211A the surrounding environment for WPC compliant devices to be powered, safely engages the device, receives packet communication from the powered device and manages the power transfer. To maximize flexibility in wireless power applications, Dynamic Power Limiting (DPL) is featured on the bq500211A. DPL enhances user experience by seamlessly optimizing the usage of power available from limited input supplies. The bq500211A supports both Foreign Object Detection (FOD) and Parasitic Metal Object Detection (PMOD) by continuously monitoring the efficiency of the established power transfer, protecting from power lost due to metal objects misplaced in the wireless power transfer bath. Should any abnormal condition develop during power transfer, the bq500211A handles it and provides indicator outputs. Comprehensive status and fault monitoring features enable a robust system design. The bq500211A is available in a 48-pin, 7 mm x 7 mm QFN package and operates over a temperature range from –40°C to 110°C.

The bq500212A is a Qi-certified value solution that integrates all functions required to control wireless power delivery to a single WPC1.1 compliant receiver. It is WPC1.1 compliant and designed for 5-V systems as a wireless power consortium type A5 or A11 transmitter. The bq500212Apingsthe surrounding environment for WPC compliant devices to be powered, safely engages the device, receives packet communication from the powered device and manages the power transfer according to WPC1.1 specification. To maximize flexibility in wireless power control applications, Dynamic Power Limiting (DPL) is featured on the bq500212A. Dynamic Power Limiting enhances user experience by seamlessly optimizing the usage of power available from limited input supplies. The bq500212A supports both foreign object detection (FOD) and enhanced parasitic metal object detection (PMOD) for legacy product by continuously monitoring the efficiency of the established power transfer, protecting from power loss due to metal objects misplaced in the wireless power transfer field. The bq500212A handles any abnormal condition development during power transfer and provides indicator outputs. Comprehensive status and fault monitoring features enable a low cost yet robust, Qi-certified wireless power system design. The bq500212A is available in a 48-pin, 7-mm × 7-mm VQFN package. The bq500212A is a Qi-certified value solution that integrates all functions required to control wireless power delivery to a single WPC1.1 compliant receiver. It is WPC1.1 compliant and designed for 5-V systems as a wireless power consortium type A5 or A11 transmitter. The bq500212Apingsthe surrounding environment for WPC compliant devices to be powered, safely engages the device, receives packet communication from the powered device and manages the power transfer according to WPC1.1 specification. To maximize flexibility in wireless power control applications, Dynamic Power Limiting (DPL) is featured on the bq500212A. Dynamic Power Limiting enhances user experience by seamlessly optimizing the usage of power available from limited input supplies. The bq500212A supports both foreign object detection (FOD) and enhanced parasitic metal object detection (PMOD) for legacy product by continuously monitoring the efficiency of the established power transfer, protecting from power loss due to metal objects misplaced in the wireless power transfer field. The bq500212A handles any abnormal condition development during power transfer and provides indicator outputs. Comprehensive status and fault monitoring features enable a low cost yet robust, Qi-certified wireless power system design. The bq500212A is available in a 48-pin, 7-mm × 7-mm VQFN package.

The bq500215 is a dedicated wireless power digital controller that integrates the logic functions required to control wireless power transfer to a single WPC-compliant receiver. The bq500215 complies with the WPC v1.2 standard for power delivery up to 5 W and uses a proprietary bidirectional communication protocol to allow charging at up to 10 W with the bq51025 wireless power receiver. The bq500215 is an intelligent device that periodically pings the surrounding environment for available devices to be powered, detects if a foreign metal object is present on the charging pad, monitors all communication from the device being wirelessly powered, and adjusts power applied to the transmitter coil per feedback received from the powered device. The bq500215 also manages the fault conditions associated with the power transfer and controls the operating mode status indicator. The bq500215 uses a rail voltage control scheme instead of the traditional frequency control to adjust the amount of power delivered to the receiver. The bq500215 is a dedicated wireless power digital controller that integrates the logic functions required to control wireless power transfer to a single WPC-compliant receiver. The bq500215 complies with the WPC v1.2 standard for power delivery up to 5 W and uses a proprietary bidirectional communication protocol to allow charging at up to 10 W with the bq51025 wireless power receiver. The bq500215 is an intelligent device that periodically pings the surrounding environment for available devices to be powered, detects if a foreign metal object is present on the charging pad, monitors all communication from the device being wirelessly powered, and adjusts power applied to the transmitter coil per feedback received from the powered device. The bq500215 also manages the fault conditions associated with the power transfer and controls the operating mode status indicator. The bq500215 uses a rail voltage control scheme instead of the traditional frequency control to adjust the amount of power delivered to the receiver.